Patent Application
20250035251
The present disclosure relates to a vacuum adiabatic body, a method for manufacturing the same, and an apparatus for manufacturing the same.
A vacuum adiabatic wall may be provided to improve adiabatic performance. A device of which at least a portion of an internal space is provided in a vacuum state to achieve an adiabatic effect is referred to as a vacuum adiabatic body.
The applicant has developed a technology to obtain a vacuum adiabatic body that is capable of being used in various devices and home appliances and has disclosed Korean Application Nos. 10-2015-0109724 and 10-2015-0109722 that relate to the vacuum adiabatic body.
In the cited document, a plurality of members are coupled to provide a vacuum space. Specifically, a first plate, a conductive resistance sheet, a side plate, and a second plate are sealed to each other. To seal the coupling portion of each member, a sealing process is performed. A small process error occurring in the sealing process leads to vacuum breakage.
The present disclosure is to solve the above problems and proposes a vacuum adiabatic body with improved reliability. Various technical problems of the present disclosure are disclosed in detail in the description of the embodiments.
A vacuum adiabatic body according to the present disclosure may include a first plate; a second plate; and a vacuum space provided between the first plate and the second plate. Optionally, the vacuum adiabatic body may include a seal configured to seal the first plate and the second plate so as to provide the vacuum space. Optionally, the seal may be treated to improve corrosion resistance. Optionally, a treatment to improve corrosion resistance may be added after the seal is provided. Optionally, the corrosion resistance may be improved after the seal is sealed.
Optionally, the seal may include at least two of a first material, a second material, and a third material. Optionally, the weight ratio of the first material may be greater than the weight ratio of the second material. Optionally, the strength of the second material may be greater than the strength of the first material. Optionally, corrosion resistance of the second material may be greater than the corrosion resistance of the first material. Optionally, the oxidation degree of the second material may be greater than the oxidation degree of the first material. Optionally, the melting point of the mixture of the first and second materials may be lower than the melting point of the first material. Optionally, the melting point of the first material may be lower than the melting point of the second material. Optionally, the density of the first material may be higher than that of the second material.
Optionally, the seal may include at least two of a first material, a second material, and a third material. Optionally, the seal may include at least one of a first step process, a second step process, and a third step process to improve corrosion resistance.
Optionally, the first step process may include a process of coating the surface of the seal with a material having higher corrosion resistance than the first material. Optionally, the first step process may include at least one of a process in which the weight ratio of the first material decreases and a process in which the weight ratio of the second material increases. Optionally, the first step process may include a process of removing the rough surface of the seal.
Optionally, the first step process may include electrolytic polishing.
Optionally, the seal may include at least one of a first step process, a second step process, and a third step process to improve corrosion resistance. Optionally, in a case of performing the second step process, the second step process may be performed after the seal is sealed.
Optionally, after performing the first step process, a second step process may be performed. Optionally, before performing the third step process, the second step process may be performed.
Optionally, the second step process may include applying a composition to the seal to provide an application portion. Optionally, the composition may be an insulating coating agent of a silicone component or an antirust coating agent of a metal component. Optionally, in the composition, metal powder may be included, or the viscosity of the composition may be 1 cs (centistokes)≤the viscosity of the mixture≤10 cs (centistokes).
Optionally, the application portion may cover the seal. Optionally, the application portion may cover the entire seal. Optionally, the application portion may extend along an extension direction of the seal. Optionally, the thickness of the application portion may be thicker than the first plate. Optionally, the thickness of the application portion may be thinner than the second plate. Optionally, the width W1 of the application portion may be greater than 5 times the width W2 of the seal.
Optionally, the vacuum adiabatic body may optionally include a side plate connecting the first plate and the second plate. At least a portion of the first and second plates and the side plate may be integrally formed, or at least a portion may be sealed with each other. The side plate may include a portion extending in the height direction of the space formed between the first plate and the second plate, or may include a portion extending in the height direction of the vacuum space. The side plate may extend to provide the vacuum space extension portion. The side plate may include a first portion forming the vacuum space and the vacuum space extension portion. The side plate may include a second portion extending from the first portion. A second portion of the side plate may branch a heat conduction path along the side plate. Optionally, the width W1 of the application portion may be smaller than the width of the second portion of the side plate. Optionally, the application portion may cover at least a portion of the cutout in which at least one of the first and second plates is cut. Optionally, the application portion may cover at least a portion of an upper surface of a portion where the first plate and the second plate are spaced apart. Optionally, the application portion may cover at least a portion of a spacer where the first plate and the side plate are spaced apart. Optionally, the application portion may be inserted into the inner space of the spacer where the first plate and the side plate are spaced apart. Optionally, the application portion may extend to at least a portion of the outer surface of the side plate. Optionally, the application portion may cover the cut portion in which the first plate and the side plate are cut.
Optionally, the third step process may be performed after performing at least one of the first step process and the second step process.
The process conditions of the third step process may optionally be a case where the dry humidity is 87% or less as the process conditions of the third step process. Optionally, the process condition of the third step process may be an initial humidity of 87% or less. Optionally, the process conditions of the third step process may be that the initial humidity may be 87% or less and the drying time may be in the range of 6 hours to 48 hours. Optionally, the process conditions of the third step process may be the dry humidity of 60% or less. Optionally, the process conditions of the third step process may be a dry humidity of 60% or less and an initial humidity of 87% or less. Optionally, the process conditions of the third step process may be that the drying humidity of 60% or less and the drying time of the range of 6 hours to 48 hours.
A method for manufacturing a vacuum adiabatic body according to the present disclosure may include: a vacuum adiabatic body component preparation step of manufacturing a component applied to the vacuum adiabatic body; a vacuum adiabatic body component assembly step of assembling the component; a vacuum adiabatic body component sealing step of sealing an outer wall of the vacuum space to block the vacuum space from the external space; a vacuum adiabatic body vacuum exhausting step of exhausting the internal air of the vacuum space; and a device assembly step of providing a device using the vacuum adiabatic body. Optionally, the process of improving the corrosion resistance of the sealed seal may be performed before the device assembling step.
Optionally, the seal may include at least two of a first material, a second material, and a third material. Optionally, the seal may include at least one of a first step process, a second step process, and a third step process to improve corrosion resistance.
The apparatus for manufacturing a vacuum adiabatic body according to the present disclosure may include an electrolytic polishing apparatus. Optionally, the manufacturing device may include a power device that supplies current. Optionally, the manufacturing device may include a first electrode device connected to the power device and supplying power and electrolyte to the vacuum adiabatic body. Optionally, the manufacturing device may include a second electrode device indirectly connected to the first electrode device through the vacuum adiabatic body and connected to the electric power device.
Optionally, the first electrode device may supply the electrolyte to the seal of the vacuum adiabatic body. Optionally, the first electrode device may include a brush for supplying an electrolyte. Optionally, the second electrode device may contact the outside of the seal. Optionally, an adiabatic pad may be provided at an end of the second electrode device.
A vacuum adiabatic body according to the present disclosure may include a first plate; a second plate; and a vacuum space provided between the first plate and the second plate. Optionally, the vacuum adiabatic body may include a seal configured to seal the first plate and the second plate so as to provide the vacuum space. Optionally, at least a portion of the first plate and the second plate includes a first material. Optionally, the seal includes the first material and a second material different from the first material.
Optionally, the second material includes at least two different materials.
Optionally, the vacuum adiabatic body satisfies a condition in which the weight ratio of the first material is greater than the weight ratio of the second material. Optionally, the vacuum adiabatic body satisfies a condition in which the second material includes a component having a greater strength than the first material. Optionally, the vacuum adiabatic body satisfies a condition in which the second material includes a component having greater corrosion resistance than the first material. Optionally, the vacuum adiabatic body satisfies a condition in which the second material includes a component having a greater degree of oxidation than the first material. Optionally, the vacuum adiabatic body satisfies a condition in which the melting point of the mixture of the first and second materials is lower than the melting point of the first material. Optionally, the vacuum adiabatic body satisfies a condition in which the second material includes a portion having a higher melting point than the first material. Optionally, the vacuum adiabatic body satisfies a condition in which the second material includes a portion having a lower density than the first material.
Optionally, a first portion that is at least a portion of a portion of the first plate and the second plate excluding the seal on which the sealing is performed includes the first material and the second material. Optionally, a weight ratio of the second material is provided as A, a weight ratio of the second material in the seal is provided as B, and B and A are different values from each other.
Optionally, B is a value greater than A.
Optionally, the seal includes a portion having a greater strength than the first portion.
Optionally, the seal includes a portion having a greater corrosion resistance than the first portion.
Optionally, the seal includes a portion having a greater degree of oxidation than the first portion.
Optionally, the seal includes a portion formed with an oxide film thicker than the first portion.
Optionally, the seal includes a portion having a lower density than the first portion.
Optionally, the seal includes a portion having a higher rigidity than the first portion.
Optionally, in the seal, the mixture of the first and second materials includes a portion having a lower melting point than the first portion.
Optionally, the seal includes a portion having a higher flexibility than the first portion.
Optionally, the seal includes a portion having a higher melting point than the first portion.
Optionally, the seal includes a portion in which melting occurs later than the first portion in a high-temperature exhaust process for manufacturing the vacuum adiabatic body.
Optionally, the seal is manufactured by the first step process, and the first step process includes a process of coating the second material on the surface of the seal. Optionally, the seal is manufactured by the first step process, and the first step process includes a process of reducing the weight ratio of the first material in the seal. Optionally, the seal is manufactured by the first step process, and the first step process includes a process of increasing the weight ratio of the second material in the seal. Optionally, the seal is manufactured by the first step process, and the first step process includes a process of removing the rough surface from the seal.
Optionally, the first step process includes electrolytic polishing.
Optionally, a first portion that is at least a portion of a portion of the first plate and the second plate excluding the seal on which the sealing is performed includes the first material and the second material. Optionally, the seal includes a material A different from the first material and the second material.
Optionally, the seal includes a portion having a greater strength than the first portion.
Optionally, the seal includes a portion having a greater corrosion resistance than the first portion.
Optionally, the seal includes a portion having a higher adhesive strength or viscosity than the first portion.
Optionally, the seal includes a portion having a higher moisture permeability prevention degree than the first portion.
Optionally, the seal includes a portion having a higher waterproof capacity than the first portion.
Optionally, the material A contains at least one of a silicon component insulation coating agent, a metal component rust prevention coating agent, metal powder, and a material satisfying 1 cs (centistokes)≤the viscosity of A material≤10 cs (centistokes).
Optionally, the seal is manufactured by a second step process, and the second step process includes a process of coating a material A different from the first material and the second material on the surface of the seal. Optionally, the seal is manufactured by a second step process, and the second step process includes a process of reducing the weight ratio of the first material and the second material in the seal. Optionally, the seal is manufactured by a second step process, and the second step process includes a process of increasing the weight ratio of the material A in the seal. Optionally, the seal is manufactured by a second step process, and the second step process includes a process of removing the rough surface from the seal.
Optionally, the second step process includes a process of providing an application portion to the seal.
Optionally, the seal is manufactured by a third step process, and the third step process includes a process in which the seal or the vicinity of the seal is dried. Optionally, the seal is manufactured by a third step process, and the third step process includes a processes in which the seal or the vicinity of the seal is stored within a predetermined humidity range.
Optionally, the predetermined humidity condition satisfies at least one of a dry humidity of 87% or less and an initial humidity of 87% or less.
Optionally, the predetermined humidity condition satisfies at least one of a dry humidity of 87% or less and an initial humidity of 60% or less.
Optionally, the predetermined humidity condition satisfies at least one of a dry humidity of 60% or less and an initial humidity of 87% or less.
Optionally, the predetermined humidity condition satisfies at least one of a dry humidity of 60% or less and an initial humidity of 60% or less.
Optionally, the third step process includes a process of being maintained for 6 hours or more.
Optionally, the third step process includes a process of being maintained for 24 hours or more.
Optionally, the third step process includes a process of being maintained for 48 hours or more.
Optionally, in the third step process, when a is defined as any one of dry humidity and initial humidity and b is defined as the storage time, the ab relational expression satisfies a/b≤14.5 (%/hr).
Optionally, the ab relational expression satisfies a/b≤10 (%/hr).
Optionally, the ab relational expression satisfies a/b≤7.25 (%/hr).
Optionally, in the third step process, when a is defined as any one of dry humidity and initial humidity and b is defined as the drying time, the ab relational expression satisfies a/b≤14.5 (%/hr).
Optionally, the ab relational expression satisfies a/b≤10 (%/hr).
Optionally, the ab relational expression satisfies a/b≤7.25 (%/hr).
Optionally, the seal is manufactured by at least two or more processes, and, the process includes a process A and a process B. Optionally, the process A includes at least one of fusion welding and pressure welding. Optionally, process B includes at least one of a first step process, a second step process, and a third step process. Optionally, the process B simultaneously performs at least two or more of the first step process, the second step process, and the third step process.
Optionally, the first step process includes a process of increasing the strength of the seal. Optionally, the first step process includes a process of increasing the corrosion resistance of the seal. Optionally, the first step process includes a process of increasing the degree of oxidation of the seal. Optionally, the first step process includes a process of forming a thicker oxide film on the seal. Optionally, the first step process includes a process of reducing the density of the seal. Optionally, the first step process includes a process of increasing the rigidity of the seal. Optionally, the first step process includes a process of increasing the flexibility of the seal. Optionally, the first step process includes a process of raising or lowering the melting point of the seal. Optionally, the first step process includes a process of, in the high-temperature exhaust process for manufacturing the vacuum adiabatic body, causing the seal to melt late. Optionally, the first step process includes a process of changing the weight ratio of the composition constituting the material of the seal. Optionally, the first step process includes a process of coating the seal. Optionally, the first step process includes a process of changing the formation of the surface of the seal.
Optionally, the second step process includes a process of increasing the strength of the seal. Optionally, the second step process includes a process of increasing the corrosion resistance of the seal. Optionally, the second step process includes a process of increasing the adhesive strength or viscosity of the seal. Optionally, the second step process includes a process of increasing the moisture permeability prevention degree of the seal. Optionally, the second step process includes a process of increasing the waterproof ability of the seal. Optionally, the second step process includes a process of changing the weight ratio of the composition constituting the material of the seal. Optionally, the second step process includes a process of coating the seal. Optionally, the second step process includes a process of changing the formation of the surface of the seal.
Optionally, the third step process includes a process in which the seal or the vicinity of the seal is dried. Optionally, the third step process includes a process in which the seal or the vicinity of the seal is stored within a predetermined humidity range.
Optionally, the process B is performed after the process A is performed.
Optionally, the process B is performed while the process A is performed.
The vacuum adiabatic body according to the present disclosure can maintain a high adiabatic effect for a long time. Various effects of the present disclosure are disclosed in more detail in the description of the embodiments.
Hereinafter, specific embodiments will be described in detail with reference to the accompanying drawings. The disclosure may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein, and a person of ordinary skill in the art, who understands the spirit of the present disclosure, may readily implement other embodiments included within the scope of the same concept by adding, changing, deleting, and adding components; rather, it will be understood that they are also included within the scope of the present disclosure. The present disclosure may have many embodiments in which the idea is implemented, and in each embodiment, any portion may be replaced with a corresponding portion or a portion having a related action according to another embodiment. The present disclosure may be any one of the examples presented below or a combination of two or more examples.
The present disclosure relates to a vacuum adiabatic body including a first plate; a second plate; a vacuum space defined between the first and second plates; and a seal providing the vacuum space that is in a vacuum state. The vacuum space may be a space in a vacuum state provided in an internal space between the first plate and the second plate. The seal may seal the first plate and the second plate to provide the internal space provided in the vacuum state. The vacuum adiabatic body may optionally include a side plate connecting the first plate to the second plate. In the present disclosure, the expression “plate” may mean at least one of the first and second plates or the side plate. At least a portion of the first and second plates and the side plate may be integrally provided, or at least portions may be sealed to each other. Optionally, the vacuum adiabatic body may include a support that maintains the vacuum space. The vacuum adiabatic body may selectively include a thermal insulator that reduces an amount of heat transfer between a first space provided in vicinity of the first plate and a second space provided in vicinity of the second plate or reduces an amount of heat transfer between the first plate and the second plate. Optionally, the vacuum adiabatic body may include a component coupling portion provided on at least a portion of the plate. Optionally, the vacuum adiabatic body may include another adiabatic body. Another adiabatic body may be provided to be connected to the vacuum adiabatic body. Another adiabatic body may be an adiabatic body having a degree of vacuum, which is equal to or different from a degree of vacuum of the vacuum adiabatic body. Another adiabatic body may be an adiabatic body that does not include a degree of vacuum less than that of the vacuum adiabatic body or a portion that is in a vacuum state therein. In this case, it may be advantageous to connect another object to another adiabatic body.
In the present disclosure, a direction along a wall defining the vacuum space may include a longitudinal direction of the vacuum space and a height direction of the vacuum space. The height direction of the vacuum space may be defined as any one direction among virtual lines connecting the first space to the second space to be described later while passing through the vacuum space. The longitudinal direction of the vacuum space may be defined as a direction perpendicular to the set height direction of the vacuum space. In the present disclosure, that an object A is connected to an object B means that at least a portion of the object A and at least a portion of the object B are directly connected to each other, or that at least a portion of the object A and at least a portion of the object B are connected to each other through an intermedium interposed between the objects A and B. The intermedium may be provided on at least one of the object A or the object B. The connection may include that the object A is connected to the intermedium, and the intermedium is connected to the object B. A portion of the intermedium may include a portion connected to either one of the object A and the object B. The other portion of the intermedium may include a portion connected to the other of the object A and the object B. As a modified example, the connection of the object A to the object B may include that the object A and the object B are integrally prepared in a shape connected in the above-described manner. In the present disclosure, an embodiment of the connection may be support, combine, or a seal, which will be described later. In the present disclosure, that the object A is supported by the object B means that the object A is restricted in movement by the object B in one or more of the +X, −X, +Y, −Y, +Z, and −Z axis directions. In the present disclosure, an embodiment of the support may be the combine or seal, which will be described later. In the present disclosure, that the object A is combined with the object B may define that the object A is restricted in movement by the object B in one or more of the X, Y, and Z-axis directions. In the present disclosure, an embodiment of the combining may be the sealing to be described later. In the present disclosure, that the object A is sealed to the object B may define a state in which movement of a fluid is not allowed at the portion at which the object A and the object B are connected. In the present disclosure, one or more objects, i.e., at least a portion of the object A and the object B, may be defined as including a portion of the object A, the whole of the object A, a portion of the object B, the whole of the object B, a portion of the object A and a portion of the object B, a portion of the object A and the whole of the object B, the whole of the object A and a portion of the object B, and the whole of the object A and the whole of the object B. In the present disclosure, that the plate A may be a wall defining the space A may be defined as that at least a portion of the plate A may be a wall defining at least a portion of the space A. That is, at least a portion of the plate A may be a wall forming the space A, or the plate A may be a wall forming at least a portion of the space A. In the present disclosure, a central portion of the object may be defined as a central portion among three divided portions when the object is divided into three sections based on the longitudinal direction of the object. A peripheral portion of the object may be defined as a portion disposed at a left or right side of the central portion among the three divided portions. The peripheral portion of the object may include a surface that is in contact with the central portion and a surface opposite thereto. The opposite side may be defined as a border or edge of the object. Examples of the object may include a vacuum adiabatic body, a plate, a heat transfer resistor, a support, a vacuum space, and various components to be introduced in the present disclosure. In the present disclosure, a degree of heat transfer resistance may indicate a degree to which an object resists heat transfer and may be defined as a value determined by a shape including a thickness of the object, a material of the object, and a processing method of the object. The degree of the heat transfer resistance may be defined as the sum of a degree of conduction resistance, a degree of radiation resistance, and a degree of convection resistance. The vacuum adiabatic body according to the present disclosure may include a heat transfer path defined between spaces having different temperatures, or a heat transfer path defined between plates having different temperatures. For example, the vacuum adiabatic body according to the present disclosure may include a heat transfer path through which cold is transferred from a low-temperature plate to a high-temperature plate. In the present disclosure, when a curved portion includes a first portion extending in a first direction and a second portion extending in a second direction different from the first direction, the curved portion may be defined as a portion that connects the first portion to the second portion (including 90 degrees).
In the present disclosure, the vacuum adiabatic body may optionally include a component coupling portion. The component coupling portion may be defined as a portion provided on the plate to which components are connected to each other. The component connected to the plate may be defined as a penetration portion disposed to pass through at least a portion of the plate and a surface component disposed to be connected to a surface of at least a portion of the plate. At least one of the penetration component or the surface component may be connected to the component coupling portion. The penetration component may be a component that defines a path through which a fluid (electricity, refrigerant, water, air, etc.) passes mainly. In the present disclosure, the fluid is defined as any kind of flowing material. The fluid includes moving solids, liquids, gases, and electricity. For example, the component may be a component that defines a path through which a refrigerant for heat exchange passes, such as a suction line heat exchanger (SLHX) or a refrigerant tube. The component may be an electric wire that supplies electricity to an apparatus. As another example, the component may be a component that defines a path through which air passes, such as a cold duct, a hot air duct, and an exhaust port. As another example, the component may be a path through which a fluid such as coolant, hot water, ice, and defrost water pass. The surface component may include at least one of a peripheral adiabatic body, a side panel, injected foam, a pre-prepared resin, a hinge, a latch, a basket, a drawer, a shelf, a light, a sensor, an evaporator, a front decor, a hotline, a heater, an exterior cover, or another adiabatic body.
As an example to which the vacuum adiabatic body is applied, the present disclosure may include an apparatus having the vacuum adiabatic body. Examples of the apparatus may include an appliance. Examples of the appliance may include home appliances including a refrigerator, a cooking appliance, a washing machine, a dishwasher, and an air conditioner, etc. As an example in which the vacuum adiabatic body is applied to the apparatus, the vacuum adiabatic body may constitute at least a portion of a body and a door of the apparatus. As an example of the door, the vacuum adiabatic body may constitute at least a portion of a general door and a door-in-door (DID) that is in direct contact with the body. Here, the door-in-door may mean a small door placed inside the general door. As another example to which the vacuum adiabatic body is applied, the present disclosure may include a wall having the vacuum adiabatic body. Examples of the wall may include a wall of a building, which includes a window.
Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings. Each of the drawings accompanying the embodiment may be different from, exaggerated, or simply indicated from an actual article, and detailed components may be indicated with simplified features. The embodiment should not be interpreted as being limited only to the size, structure, and shape presented in the drawings. In the embodiments accompanying each of the drawings, unless the descriptions conflict with each other, some configurations in the drawings of one embodiment may be applied to some configurations of the drawings in another embodiment, and some structures in one embodiment may be applied to some structures in another embodiment. In the description of the drawings for the embodiment, the same reference numerals may be assigned to different drawings as reference numerals of specific components constituting the embodiment. Components having the same reference number may perform the same function. For example, the first plate constituting the vacuum adiabatic body has a portion corresponding to the first space throughout all embodiments and is indicated by reference number 10. The first plate may have the same number for all embodiments and may have a portion corresponding to the first space, but the shape of the first plate may be different in each embodiment. Not only the first plate, but also the side plate, the second plate, and another adiabatic body may be understood as well.
Referring to
The plate may be provided as one portion or may be provided to include at least two components connected to each other. The plate may include a first plate 10 and/or a second plate 20. One surface of the first plate (e.g., the inner surface of the first plate) may provide a wall defining the vacuum space, and the other surface (e.g., the outer surface of the first plate) of the first plate may provide a wall defining the first space. The first space may be a space provided in the vicinity of the first plate, a space defined by the apparatus, or an internal space of the apparatus. The second space may be a space provided in vicinity of the second plate, another space defined by the apparatus, or an external space of the apparatus. The side plate may include a portion extending in a height direction of a space defined between the first plate and the second plate or a portion extending in a height direction of the vacuum space. The external space of the vacuum space may be at least one of the first space or the second space or a space in which another adiabatic body to be described later is disposed. The plate may optionally include a curved portion. In the present disclosure, the plate including a curved portion may be referred to as a bent plate.
In the present disclosure, the vacuum space 50 may be defined as a third space. The vacuum space may be a space in which a vacuum pressure is maintained. In the present disclosure, the expression that a vacuum degree of A is higher than that of B means that a vacuum pressure of A is lower than that of B.
In the present disclosure, the seal 61 may be a portion provided between the first plate and the second plate. Examples of sealing are as follows. The present disclosure may be any one of the following examples or a combination of two or more examples. The sealing may include fusion welding for coupling the plurality of objects by melting at least a portion of the plurality of objects. For example, the first plate and the second plate may be welded by laser welding in a state in which a melting bond such as a filler metal is not interposed therebetween, a portion of the first and second plates and a portion of the component coupling portion may be welded by high-frequency brazing or the like, or a plurality of objects may be welded by a melting bond that generates heat. The sealing may include pressure welding for coupling the plurality of objects by a mechanical pressure applied to at least a portion of the plurality of objects. For example, as a component connected to the component coupling portion, an object made of a material having a degree of deformation resistance less than that of the plate may be pressure-coupling or pressure-welding by a method such as pinch-off or etc.
A machine room 8 may be optionally provided outside the vacuum adiabatic body. The machine room may be defined as a space in which components connected to the cold source are accommodated. Optionally, the vacuum adiabatic body may include a port 40. The port may be provided at at least any one side of the vacuum adiabatic body to discharge air of the vacuum space 50. Optionally, the vacuum adiabatic body may include a conduit 64 passing through the vacuum space 50 to install components connected to the first space and the second space.
The supports 30, 31, 33, and 35 may be provided to support at least a portion of the plate and a heat transfer resistor to be described later, thereby reducing deformation of at least some of the vacuum space 50, the plate, and the heat transfer resistor to be described later due to external force. Examples of the support may be the bars 30 and 31, the connection plate 35, the support plate 35, a porous material 33, and/or a filler 33. In this embodiment, the support may include at least any one of the above examples, or an example in which at least two examples are combined. As first example, the support may include bars 30 and 31.
Referring to
Referring to
Referring to
Optionally, the vacuum adiabatic body may be manufactured by a vacuum adiabatic body component preparation process in which the first plate and the second plate are prepared in advance. Optionally, the vacuum adiabatic body may be manufactured by a vacuum adiabatic body component assembly process in which the first plate and the second plate are assembled. Optionally, the vacuum adiabatic body may be manufactured by a vacuum adiabatic body vacuum exhaust process in which a gas in the space defined between the first plate and the second plate is discharged. Optionally, after the vacuum adiabatic body component preparation process is performed, the vacuum adiabatic body component assembly process or the vacuum adiabatic body exhaust process may be performed. Optionally, after the vacuum adiabatic body component assembly process is performed, the vacuum adiabatic body vacuum exhaust process may be performed. Optionally, the vacuum adiabatic body may be manufactured by the vacuum adiabatic body component sealing process (S3) in which the space between the first plate and the second plate is sealed. The vacuum adiabatic body component sealing process may be performed before the vacuum adiabatic body vacuum exhaust process (S4). The vacuum adiabatic body may be manufactured as an object with a specific purpose by an apparatus assembly process (S5) in which the vacuum adiabatic body is combined with the components constituting the apparatus. The apparatus assembly process may be performed after the vacuum adiabatic body vacuum exhaust process. Here, the components constituting the apparatus means components constituting the apparatus together with the vacuum adiabatic body.
The vacuum adiabatic body component preparation process (S1) is a process in which components constituting the vacuum adiabatic body are prepared or manufactured. An example of a vacuum adiabatic body vacuum exhaust process vacuum is as follows. The present disclosure may be any one of the, examples or a combination of two or more examples. The vacuum adiabatic body vacuum exhaust process may include at least one of a process of inputting the vacuum adiabatic body into an exhaust passage, a getter activation process, a process of checking vacuum leakage and a process of closing the exhaust port. The process of forming the coupling part may be performed in at least one of the vacuum adiabatic body component preparation process, the vacuum adiabatic body component assembly process, or the apparatus assembly process. Before the vacuum adiabatic body exhaust process is performed, a process of washing the components constituting the vacuum adiabatic body may be performed. Optionally, the washing process may include a process of applying ultrasonic waves to the components constituting the vacuum adiabatic body or a process of providing ethanol or a material containing ethanol to surfaces of the components constituting the vacuum adiabatic body. The ultrasonic wave may have an intensity between about 10 kHz and about 50 kHz. A content of ethanol in the material may be about 50% or more. For example, the content of ethanol in the material may range of about 50% to about 90%. As another example, the content of ethanol in the material may range of about 60% to about 80%. As another example, the content of ethanol in the material may be range of about 65% to about 75%. Optionally, after the washing process is performed, a process of drying the components constituting the vacuum adiabatic body may be performed. Optionally, after the washing process is performed, a process of heating the components constituting the vacuum adiabatic body may be performed.
The contents described in
As an embodiment, an example of a process associated with a plate is as follows. Any one or two or more examples among following examples of the present disclosure will be described. The process associated with the plate may selectively include a process of washing the plate. An example of a process sequence associated with the process of washing the plate is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples. Before the vacuum adiabatic body vacuum exhaust process is performed, the process of washing the plate may be performed. After the process of manufacturing the plate is performed, at least one of the process of molding the plate and the process of washing the plate may be performed. After the process of molding the plate is performed, the process of washing the plate may be performed. Before the process of molding the plate is performed, the process of washing the plate may be performed. After the process of manufacturing the plate is performed, at least one of a process of providing a component coupling portion to a portion of the plate or the process of washing the plate may be performed. After the process of providing the component coupling portion to a portion of the plate is performed, the process of washing the plate may be performed.
The process associated with the plate selectively include the process of providing the component coupling portion to the plate. An example of a process sequence associated with the process of providing the component coupling portion to the plate is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples. Before the vacuum adiabatic body vacuum exhaust process is performed, a process of providing the component coupling portion to a portion of the plate may be performed. For example, the process of providing the component coupling portion may include a process of manufacturing a tube provided to the component coupling portion. The tube may be connected to a portion of the plate. The tube may be disposed in an empty space provided in the plate or in an empty space provided between the plates. As another example, the process of providing the component coupling portion may include a process of providing a through-hole in a portion of the plate. For another example, the process of providing the component coupling portion may include a process of providing a curved portion to at least one of the plate or the tube.
The process associated with the plate may optionally include a process for sealing the vacuum adiabatic body component associated with the plate. An example of a process sequence associated with the process of sealing the vacuum adiabatic body component associated with the plate is as follows. The present disclosure may be any one of the following examples or a combination of two or more examples. After the process of providing the through-hole in the portion of the plate is performed, at least one of a process of providing a curved portion to at least a portion of the plate or the tube or a process of providing a seal between the plate and the tube may be performed. After the process of providing the curved portion to at least a portion of at least one of the plate or the tube is performed, the process of sealing the gap between the plate and the tube may be performed. The process of providing the through-hole in the portion of the plate and the process of providing the curved portion in at least a portion of the plate and the tube may be performed at the same time. The process of providing a through-hole in a part of the plate and the process of providing the seal between the plate and the tube may be performed at the same time. After the process of providing the curved portion to the tube is performed, the process of providing a through-hole in the portion of the plate may be performed. Before the vacuum adiabatic body vacuum exhaust process is performed, a portion of the tube may be provided and/or sealed to the plate, and after the vacuum adiabatic body vacuum exhaust process is performed, the other portion of the tube may be sealed.
When at least a portion of the plate is used to be integrated with a heat transfer resistor, the example of the process associated with the plate may also be applied to the example of the process of the heat transfer resistor.
Optionally, the vacuum adiabatic body may include a side plate connecting the first plate to the second plate. Examples of the side plate are as follows. The present disclosure may be any one of the following examples or a combination of two or more examples. The side plate may be provided to be integrated with at least one of the first or second plate. The side plate may be provided to be integrated with any one of the first and second plates. The side plate may be provided as any one of the first and second plates. The side plate may be provided as a portion of any one of the first and second plates. The side plate may be provided as a component separated from the other of the first and second plates. In this case, optionally, the side plate may be provided to be coupled or sealed to the other one of the first and second plates. The side plate may include a portion having a degree of strain resistance, which is greater than that of at least a portion of the other one of the first and second plates. The side plate may include a portion having a thickness greater than that of at least a portion of the other one of the first and second plates. The side plate may include a portion having a curvature radius less than that of at least a portion of the other one of the first and second plates.
The contents described in
The installation of the tube will be schematically described.
Referring to
Optionally, a thickness of the tube may be greater than that of the first plate 10. The thickness of the tube may be provided to be thicker than that of the second plate 20. The thickness of the tube may be provided to a thickness that is sufficient to withstand compression required for sealing the tube. The sealing may be performed through pinch-off. The tube may have a sufficient wall thickness.
Optionally, the tube may be provided as a circular or oval hollow tube made of a metal. The tube may be sealed after the exhaust or after inserting the getter. The tube may be sealed through pressure welding. The tube may be sealed by deforming the tube. The tube may be sealed through pinching-off. The tube may be made of copper (CU) for easy deformation. Copper having strength less than that of stainless steel may be used as the tube. Since the easily deformable copper is used, the pinch-off process may be smoothly performed. In addition, it is possible to reliably provide the seal. Optionally, the flange 42 may have a predetermined height portion HL extending in a height direction of the vacuum space. The curvature portion may guide the tube 40. The curvature portion may allow the tube to be conveniently inserted into the through-hole 41. Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
Referring to
Optionally, to smoothly form the flange 42 in the burring process, the following method may be applied. It may provide small force compared to the force applied in the general burring process. The force may be applied gradually for a longer time than that required for the general burring process. A first curvature may be processed in the peripheral portion of the hole provided by the piercing process between the piercing process and the burring process. During the burring process, a support having a groove corresponding to a desired shape of the burr may be provided on a surface on which the burr is generated. It may provide the flange 42 having a small curvature radius R through the above process. A portion at which the curvature radius is formed may be referred to as a curvature portion. Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
In one or more embodiments, the first plate 10 may have a thickness of at least about 0.1 mm or more. Thus, it may secure rigidity to obtain process stability when inserting the tube 40. The thickness of the first plate 10 may be about 0.1 mm. The second plate 20 may have a thickness of about 0.5 mm or more. The thin first plate 10 may be provided because conductive heat decreases. If the first plate 10 is thin, there may be a disadvantage that it is vulnerable to deformation. When the tube 40 is inserted into the through-hole 41, the first plate 10 in the vicinity of the through-hole 41 may be deformed. Optionally, A height H1 of the flange 42 may be provided to be about 1 mm or more and about 3 mm or less. When the height of the flange 42 exceeds about 3 mm, there is a high risk that the heat transfer resistor 32 and the flange 42 are in contact with each other. Optionally, the curvature radius R of the curvature portion of the flange 42 defining the through-hole 41 may be less than that of each of all bent portions provided on the first plate 10. The curvature radius R of the flange 42 defining the through-hole 41 may be less than that of each of all bent portions provided on the second plate 20. Optionally, the tube may be insulated with the additional adiabatic body 90. The additional adiabatic body 90 may insulate a gap between the tube 40 and the first space and/or a gap between the tube 40 and the second space. Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.
Referring to
Referring to
Optionally, at least one of the first support 301 and the second support 302 may be provided as at least two spaced apart components. The figure illustrates that the second support 302 is made of components that are spaced apart from each other. Each component of the first support 301 and each component of the second support 302 may be alternately connected to each other. A component of the second support 302 may be placed between two components of the first support 301 that are spaced apart from each other.
Optionally, a heat transfer resistor 32 may be placed in the middle of the first and second supports 30. The position of the heat transfer resistor 32 may be fixed by fastening the first and second supports 301 and 302. In the vacuum adiabatic body component assembling step S2, the support 30, the heat transfer resistor, and the through-component may be assembled to the plate. Here, the heat transfer resistor may include the radiation resistance sheet 32. The heat transfer resistor may include other components.
Referring to
Optionally, in the vacuum adiabatic body component sealing step S3, the vacuum space 50 may be sealed with respect to the first space and the second space. The vacuum adiabatic body component sealing step S3 may be performed by sealing the first plate 10 and the second plate 20.
Hereinafter, the strength reinforcement portion of the first plate will be described.
Optionally, if the first plate 10 is thin, side effects may occur. If the first plate is thin, the first plate may be vulnerable to deformation. When the plates are welded, temporary vacuum may be applied to bring the plate members into close contact. The temporary vacuum may be different from the vacuum process of evacuating the vacuum space 50. The first plate may be vulnerable to the deformation when the temporary vacuum is applied. The first plate may be vulnerable to the deformation at a portion where the support is discontinuous. Deformation of the first plate 10 may cause welding defects. This is because the contact of the two plates may be spaced apart from each other. The welding defect is an important problem leading to the disposal of the vacuum adiabatic body.
Referring to
Optionally, the strength reinforcement portion 111 may protrude from the first plate. The strength reinforcement portion 111 may be placed inside the seal 611. The width L3 of the strength reinforcement portion 111 may be shorter than the length L2. The width L3 of the strength reinforcement portion 111 may be greater than the width L4 of the seal. The width L3 of the strength reinforcement portion 111 may be smaller than the width L5 of the support frame. The width L3 of the strength reinforcement portion 111 may be greater than the thickness (t in
Referring to
Optionally, the second strength reinforcement portion 112 may be placed inside the grid area of the support. The second strength reinforcement portion 112 may be disposed to correspond to any corner of the inner area of the grid of the support.
The formed strength reinforcement portion 11a may preferably be exemplified to protrude upward. The formed strength reinforcement portion 11a may facilitate the formation of the seal 611.
Optionally, the formed strength reinforcement portion 11a may not be provided in
It will be described again with reference to
Optionally, the formed strength reinforcement portion and the different shape strength reinforcement portion may be provided as a non-separable type or integrally formed that is not separated from the first plate. The additional strength reinforcement portion may be separated from the first plate, or may be provided as a separate or additional type in which a predetermined member is added to the first plate. Various methods such as partial alloying, substitution, or welding may be applied to the different material strength reinforcement portion. At least one of a non-separable type, an integral type, a separate type, and an additional type can be applied to the different material strength reinforcement portion.
In one or more embodiments, a tube 40 may be fastened to the first plate 10. The first plate may be deformed by at least one of the weight of the tube and a force applied to the first plate through the tube. A contact portion between the first plate and the tube may be coupled to each other. A contact portion between the first plate and the tube may be blazed. The heat applied during the brazing may warp the first plate. The warpage of the first plate may lead to deformation of the first plate. Deformation of the first plate may adversely affect the seal 611. Deformation of the first plate may damage or vacuum break the sealing part 611. Deformation of the first plate may cause the insulation loss of the vacuum adiabatic body.
Optionally, the fastening of the first plate and the tube may be performed in the vacuum adiabatic body component assembly step or component preparation step. The fastening between the first plate and the tube may be performed before the vacuum adiabatic body component sealing step. The fastening between the first plate and the tube may be performed before the vacuum adiabatic body vacuum evacuation step of evacuating the internal air of the vacuum space.
The strength reinforcement portion provided to correspond to the tube may be referred to as a tube strength reinforcement portion, compared with the support strength reinforcement portion related to the support disclosed in
In one or more embodiments, a strength reinforcement portion 11 may be provided where the tube is fastened in the first plate. The strength reinforcement portion 11 corresponds to the operation of the tube 40 and thus may also be referred to as a tube strength reinforcement portion. In the following description, the strength reinforcement portion may refer to a tube strength reinforcement portion unless otherwise specified. The description of the tube strength reinforcement portion may be applied to the support strength reinforcement portion. The tube strength reinforcement portion may suppress deformation of the first plate due to the tube. The tube strength reinforcement portion can prevent the adverse effect of the vacuum adiabatic body according to the deformation of the first plate caused by the tube.
Optionally, the strength reinforcement portion 11 may protrude in a direction opposite to the flange 41. The strength reinforcement portion may protrude upward. The strength reinforcement portion may not be in contact with the support 31. The strength reinforcement portion may protrude downward. The strength reinforcement portion may be in contact with the frame of the support. The flange 41 may be placed in any one grid of the support. The grid may be rectangular. This arrangement can be used to prevent interference between the tube and the support.
Referring to
The oxidation prevention process of the seal will be described. The seal may be weak compared to other portions. The seal may be a weld. If the seal is provided by welding, the seal may be susceptible to corrosion. The welding may be performed by laser welding. A filler metal may not be added to the laser welding. The seal may be subjected to high heat treatment. The seal may be oxidized during high heat treatment. The oxide film may be vulnerable to corrosion. The oxide film may have low strength. The oxide film may have a predetermined volume. Even if oxygen access is blocked during the high heat treatment, an oxide film may be formed. If oxygen access is not blocked during the high heat treatment, the oxide film may be generated in a large amount.
One or more embodiments for inhibiting the oxide film are described. Optionally, at least one of the first and second plates may include at least two of a first material, a second material, and a third material. The first material may include at least iron (Fe). The second material may include at least chromium (Cr). The second material may include nickel (Ni). The third material may include at least molybdenum (MO). The seal may include a material constituting the first and second plates. The seal 611 may include at least two of a first material, a second material, and a third material. Materials constituting the first and second plates may be fused to each other to provide the seal.
Optionally, at least a portion of at least one of the first plate and the second plate may include a first material. Here, the first material may include iron (Fe). The seal may include the first material and a second material different from the first material. Here, the second material may include chromium (Cr). The second material may include at least two different materials. Here, different materials may include chromium and molybdenum. A weight ratio of the first material may be greater than a weight ratio of the second material. The second material may include a component having greater strength than the first material. Accordingly, it is possible to increase the strength of the seal. The second material may include a component having greater corrosion resistance than the first material. Accordingly, the corrosion resistance of the seal can be improved. The second material may include a component having an oxidation degree greater than that of the first material. Accordingly, the oxidation degree of the second material may be greater than that of the first material. Accordingly, an oxide film having high corrosion resistance can be easily formed. Here, the oxidation degree may be defined as a degree to which an atom, molecule, or ion loses electrons. The melting point of the mixture of the first and second materials may be lower than the melting point of the first material. Accordingly, the mixture can be easily fused during laser welding. The second material may include a portion having a higher melting point than the first material. Accordingly, the second material may not be easily melted during a high-temperature exhaust process. The second material may include a portion having a lower density than that of the first material. Accordingly, the rigidity of the seal can be increased. Accordingly, the flexibility of the seal can be increased.
Optionally, in the mixture of the first and second materials, a weight ratio of the first material may be greater than a weight ratio of the second material. The strength of the second material may be greater than that of the first material. Corrosion resistance of the second material may be greater than that of the first material. The oxidation degree of the second material may be greater than the oxidation degree of the first material. When a plate in which the first and second materials are mixed is provided, the second material first forms an oxide film, and the oxide film of the second material can reduce oxidation of the first material. The melting point of the mixture of the first and second materials may be lower than the melting point of the first material. The melting point of the first material may be lower than the melting point of the second material. The melting points of the mixture of the first and second materials may not be constant. The melting point of the mixture of the first and second materials may be 1400 to 1450 degrees Celsius. The density of the first material may be higher than that of the second material. The price of the first material may be lower than the price of the second material.
Optionally, the oxidation prevention process for suppressing the corrosive oxide film of the seal may include at least one of a first step process, a second step process, and a third step process. Descriptions in any one of the first step process, the second step process, and the third step process may be applied to the other one.
Optionally, the first step process may be performed by coating the surface of the seal with a material having a higher corrosion resistance than the first material. The surface of the seal is fused, and the oxide film of the second material may be damaged. The surface of the seal may be fused and the oxide film of the first material may be exposed. The oxide film of the first material may have weak corrosion resistance. In the first step process, an oxide film made of a material having higher corrosion resistance than the oxide film of the first material may be coated. The oxide film of the second material may have greater corrosion resistance than the oxide film of the first material.
Optionally, the first step process may include at least one of a process in which the weight ratio of the first material decreases and a process in which the weight ratio of the second material increases. Here, the first step process may be performed during the sealing process. While the first material and the second material are mixed again, a weight ratio of the first material to the surface of the seal may increase. While the first material and the second material are mixed again, a weight ratio of the second material on the surface of the seal may decrease. A change in the weight of the seal may result in a decrease in corrosion resistance. In the first step process, corrosion resistance may be increased through readjustment of the weight ratio of the first material and the second material.
Optionally, the first step process may be performed by removing the rough surface of the seal. The rough surface may be generated at the time of fusion. The rough surface can reduce corrosion resistance. The first step process may include sanding the rough surface. The first step process may include a process of lowering the weight ratio of the first material in the seal after sealing. The first step process may include a process of increasing the weight ratio of the second material in the seal after sealing.
Optionally, the first step process may include an electrolytic polishing process. The first step process may include a local electrolytic polishing process. If the entire vacuum adiabatic body is immersed in the electrolyte, side effects may occur due to the electrolyte. For example, the electrolyte may penetrate into the vacuum space. For example, the support may be damaged due to high heat. The local electrolytic polishing process will be described.
Optionally, a first portion that is at least a portion of a portion of the first plate and the second plate excluding the seal on which the sealing is performed may include the first material and the second material. Here, the weight ratio of the second material may be provided as A, and the weight ratio of the second material in the seal may be provided as B. Here, B and A may have different values. The value of B may be greater than that of A. The seal may include a portion having a greater strength than the first portion. Accordingly, the strength of the seal may be increased. The seal may include a portion having greater corrosion resistance than the first portion. Accordingly, the corrosion resistance of the seal may be increased. The seal may include a portion having a greater degree of oxidation than the first portion. Accordingly, it is possible to easily form an oxide film having high corrosion resistance because the degree of oxidation of the seal is high. The seal may include a portion in which an oxide film is formed thicker than the first portion. Accordingly, an oxide film having high corrosion resistance can be easily formed. The seal may include a portion having a lower density than the first portion. Accordingly, the rigidity of the seal may be increased. The seal may include a portion having a higher rigidity than the first portion. Accordingly, the flexibility of the seal may be increased. In the seal, the mixture of the first and second materials may include a portion having a lower melting point than the first portion. Accordingly, the mixture can be easily fused during laser welding. The seal may include a portion having a higher flexibility than the first portion. Accordingly, the flexibility of the seal may be increased. The seal may include a portion having a higher melting point than the first portion. Accordingly, the seal may not be easily melted during a high-temperature drying process. The seal may include a portion in which melting occurs later than the first portion in a high-temperature exhaust process for manufacturing the vacuum adiabatic body. Accordingly, the seal may not be easily melted during a high-temperature exhaust process.
Optionally, the seal may be manufactured by a first step process. The first step process may include a process of coating the second material on the surface of the seal. The first step process may include a process of reducing a weight ratio of the first material in the seal. The first step process may include a process of increasing a weight ratio of the second material in the seal. The first step process may include a process of removing a rough surface from the seal. The first step process may include at least one of the four processes. The first step process may include electrolytic polishing.
Referring to
The second electrode device 602 may move at a constant speed. The second electrode device 602 may move at a speed of approximately 60 centimeters per minute. The brush portion of the second electrode device 602 may move on the upper surface of the seal 611. The second electrode device 602 may apply an electrolyte and/or conduct current. An electrolytic polishing operation may occur in the seal by the applied current and the electrolyte.
With the electrolyte 701 in contact with the oxide film, a current may flow from the seal 611 to the electrolyte. By this operation, the electrolytic polishing operation can be performed. The seal may form a passivation film by the electrolytic polishing operation. A dense structure of a chromium oxide film may be formed in the seal by the electrolytic polishing operation.
Optionally, the second step process may be performed on the seal. The second step process may be performed after the seal is provided. The second step process may be performed after the first step process. The second step process may be performed before the third step process. The second step process may include a process of applying a mixture to prevent moisture penetration into the seal. The moisture may include brine. As the mixture, an insulating coating agent (first mixture) of a silicone component may be used. As the silicone-based insulating coating agent, Navachem's S-830 can be used. The mixture may use a metal component anti-rust coating agent (second mixture). The metal component anti-rust coating agent Navachem L-316 can be used.
Table 1 and Table 2 are views illustrating the components of the insulating coating agent of the silicone component and the rust prevention coating agent of the metal component, respectively.
As a composition of the first and second mixtures, optionally, the composition may include at least one of an adhesive component, a solvent, a moisture permeation preventing component, an adhesive strength improving component, a corrosion resistance improving component, and a spraying component.
Optionally, as the adhesive component, the modified silicone polymer may play a weak role. The modified epoxy resin may play a weak role. The adhesive component may enable the composition to be attached to the seal together with application.
Optionally, as the solvent, toluene, xylene, and acetone may play a role.
Optionally, as the moisture permeation prevention component, the modified silicone polymer may play a strong role. The modified epoxy resin may play a weak role. The metal powder may play a strong role. The metal powder may include at least one component of iron, molybdenum, aluminum, and nickel.
Optionally, as the adhesive strength improving component, the modified silicone polymer may play a strong role.
Optionally, as the corrosion resistance improving component, the metal powder may play a role.
Optionally, as the spraying component, dimethyl ether may be used. The spraying component may reduce the viscosity of the mixture. The spraying component may allow the mixture to penetrate well into cracks in the weld. Through this, the performance of the weld can be improved. Conversely, if the viscosity is too small, the plate surface may have weak adhesion. Optionally, the viscosity of the mixture may range from 1 cs (centistokes)≤the viscosity of the mixture≤10 cs (centistokes).
Optionally, the mixture may be applied to the seal.
Optionally, a first portion that is at least a portion of a portion of the first plate and the second plate excluding the seal on which the sealing is performed may include the first material and the second material. The seal may include a material A different from the first material and the second material. Here, material A may include S-830 coating agent or L-316 coating agent. The seal may include a portion having a greater strength than the first portion. Accordingly, the strength of the seal may be increased. The seal may include a portion having greater corrosion resistance than the first portion. Accordingly, the corrosion resistance of the seal may be increased. The seal may include a portion having a higher adhesive strength or viscosity than the first portion. Accordingly, the adhesiveness of a seal can be improved. The seal may include a portion having a higher moisture permeability prevention degree than the first portion. Accordingly, the moisture permeability prevention degree of the seal can be improved. The seal may include a portion having a higher waterproof ability than the first portion. Accordingly, the waterproof ability of the seal can be improved. The material A may include an insulating coating agent of a silicone component. The material A may include a metal component anti-rust coating agent. The material A may include metal powder. The material A may include a material satisfying 1 cs (centistokes)≤the viscosity of material A≤10 cs (centistokes). The material A may include at least one of the four materials.
Optionally, the seal may be manufactured by a second step process. Here, the second step process may include a process of coating a surface of the seal with a material A different from the first material and the second material. Here, the second step process may include a process in which the weight ratio of the first material and the second material in the seal is reduced. Here, the second step process may include a process of increasing the weight ratio of the material A in the seal. Here, the second step process may include at least one of a process of removing a rough surface from the seal. Here, the second step process may include a process of providing an application portion to the seal.
Optionally, the third step process may be performed on the seal. The third step process may be performed after the second step process. After performing at least one of the first step process and the second step process, the third step process was performed. The third step process may be a post-processing process for the application portion 801. The third step process may include at least one condition of initial humidity (for example, during application), dry humidity (for example, during drying), and time after the application unit 801 is provided. A cross-cut experiment was performed under different post-processing conditions for the application portion 801. The cross-cut experiment may be performed by providing 10 grids having 1 millimeter gap with 1 cm in length in the left and right direction after the post-processing, and attaching and detaching a standard tape to the grid. Each line of the grid can be provided by marking with a knife. It can be determined that the performance of the application portion is poor as the amount of peeling of the application portion 801 in the inner area of the grid increases. Table 3 below is a view summarizing the results of the cross-cut experiment.
Referring to Table 3, P means pass and F means fail. According to the results of the experiment, it may be preferable that the drying humidity is lowered. Optionally, the pass may be possible when the dry humidity is 87% or less. If the initial humidity is 87% or less, the pass may be possible. When the initial humidity is 87% or less, if the drying time is within the range of 6 hours to 48 hours, in any case, the pass may be possible.
Optionally, the dry humidity is preferably 60% or less. When the dry humidity is 60% or less, if the initial humidity is 87% or less, it is preferable at any time. When the drying humidity is 60% or less, if the drying time is in the range of 6 hours to 48 hours, it is preferable at any time.
Optionally, the seal may be manufactured by a third step process. The third step process may include a process in which the seal or the vicinity of the seal is dried. The third step process may include a process in which the seal or the vicinity of the seal is stored within a predetermined humidity range. The third step process may include at least one of the two processes. The predetermined humidity condition may satisfy at least one of a dry humidity of 87% or less and an initial humidity of 87% or less. The predetermined humidity condition may satisfy at least one of a dry humidity of 87% or less and an initial humidity of 60% or less. The predetermined humidity condition may satisfy at least one of a dry humidity of 60% or less and an initial humidity of 87% or less. The predetermined humidity condition may satisfy at least one of a dry humidity of 60% or less and an initial humidity of 60% or less. The third step process may include a process of being maintained for 6 hours or more. The third step process may include a process of being maintained for 24 hours or more. The third step process may include a process of being maintained for 48 hours or more. In the third step process, when a is defined as any one of dry humidity and initial humidity, and b is defined as the storage time, the first ab relational expression may satisfy a/b≤14.5 (%/hr). Here, the first ab relational expression may satisfy a/b≤10 (%/hr). Here, the first ab relational expression may satisfy a/b≤7.25 (%/hr). In the third step process, when a is defined as any one of dry humidity and initial humidity, and b is defined as the drying time, the second ab relational expression may satisfy a/b≤14.5 (%/hr). Here, the second ab relational expression may satisfy the above a/b≤10 (%/hr). Here, the second ab relational expression may satisfy a/b≤7.25 (%/hr).
Optionally, the seal is manufactured by at least two or more processes, and the process may include a process A and a process B. The process A may include at least one of fusion welding and pressure welding. The process B may include at least one of a first step process, a second step process, and a third step process. In the process B, at least two or more of the first step process, the second step process, and the third step process may be simultaneously performed. The first step process includes a process of increasing the strength of the seal, a process of increasing the corrosion resistance of the seal, a process of increasing the oxidation degree of the seal, a process of forming a thicker oxide film on the seal, a process of reducing the density of the seal, a process of increasing the rigidity of the seal, a process of increasing the flexibility of the seal, a process of raising or lowering the melting point of the seal, in the high-temperature exhaust process for manufacturing the vacuum adiabatic body, a process in which the melting of the seal occurs late, a process of changing a weight ratio of a composition constituting a material of the seal, a process of coating the seal; and a process of changing the formation of the surface of the seal. The second step process may include at least one of a process of increasing the strength of the seal, a process of increasing the corrosion resistance of the seal, a process of increasing the adhesive strength or viscosity prevention degree of the seal, a process of increasing the moisture permeability of the seal, a process of increasing the waterproofing ability of the seal, a process of changing the weight ratio of a composition constituting the material of the seal, a process of coating the seal, and a process of changing the formation of the surface of the seal may include The third step process may include at least one of a process in which the seal or the vicinity of the seal is dried, and a process in which the seal or the vicinity of the seal is stored within a predetermined humidity range. The process B may be performed after the process A is performed. The process B may be performed while the process A is being performed.
According to the present disclosure, it is possible to provide a vacuum adiabatic body that can be applied to real life.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2021-0171927 | Dec 2021 | KR | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/KR2022/019388 | 12/1/2022 | WO |
